Kochhar, N., & Lad, E. (1999). Introduction to Oracle : SQL and PL/SQL: Student Guide * Volume - 2.
Cita Chicago (17th ed.)Kochhar, Neena, i Eileen Lad. Introduction to Oracle : SQL and PL/SQL: Student Guide * Volume - 2. [Redwood Shores, Calif.] : Oracle, 1999.
Cita MLA (9th ed.)Kochhar, Neena, i Eileen Lad. Introduction to Oracle : SQL and PL/SQL: Student Guide * Volume - 2. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.